The small black hole illusion
Abstract Small black holes in string theory are characterized by a classically singular horizon with vanishing Bekenstein-Hawking entropy. It has been argued that higher- curvature corrections resolve the horizon and that the associated Wald entropy is in agreement with the microscopic degeneracy. I...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-03-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP03(2020)115 |
| _version_ | 1830428677462032384 |
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| author | Pablo A. Cano Pedro F. Ramírez Alejandro Ruipérez |
| author_facet | Pablo A. Cano Pedro F. Ramírez Alejandro Ruipérez |
| author_sort | Pablo A. Cano |
| collection | DOAJ |
| description | Abstract Small black holes in string theory are characterized by a classically singular horizon with vanishing Bekenstein-Hawking entropy. It has been argued that higher- curvature corrections resolve the horizon and that the associated Wald entropy is in agreement with the microscopic degeneracy. In this note we study the heterotic two-charge small black hole and question this result, which we claim is caused by a misidentification of the fundamental constituents of the system studied when higher-curvature interactions are present. On the one hand, we show that quadratic curvature corrections do not solve the singular horizon of small black holes. On the other, we argue that the resolution of the heterotic small black hole reported in the literature involves the introduction of solitonic 5-branes, whose asymptotic charge vanishes due to a screening effect induced by the higher- curvature interactions, and a Kaluza-Klein monopole, whose charge remains unscreened. |
| first_indexed | 2024-12-21T01:21:58Z |
| format | Article |
| id | doaj.art-f5d0a220df6a4672b69a46816988e32f |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-21T01:21:58Z |
| publishDate | 2020-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-f5d0a220df6a4672b69a46816988e32f2022-12-21T19:20:37ZengSpringerOpenJournal of High Energy Physics1029-84792020-03-012020311210.1007/JHEP03(2020)115The small black hole illusionPablo A. Cano0Pedro F. Ramírez1Alejandro Ruipérez2Instituto de Física Teórica UAM/CSICINFN, Sezione di MilanoInstituto de Física Teórica UAM/CSICAbstract Small black holes in string theory are characterized by a classically singular horizon with vanishing Bekenstein-Hawking entropy. It has been argued that higher- curvature corrections resolve the horizon and that the associated Wald entropy is in agreement with the microscopic degeneracy. In this note we study the heterotic two-charge small black hole and question this result, which we claim is caused by a misidentification of the fundamental constituents of the system studied when higher-curvature interactions are present. On the one hand, we show that quadratic curvature corrections do not solve the singular horizon of small black holes. On the other, we argue that the resolution of the heterotic small black hole reported in the literature involves the introduction of solitonic 5-branes, whose asymptotic charge vanishes due to a screening effect induced by the higher- curvature interactions, and a Kaluza-Klein monopole, whose charge remains unscreened.http://link.springer.com/article/10.1007/JHEP03(2020)115Black Holes in String TheorySuperstrings and Heterotic Strings |
| spellingShingle | Pablo A. Cano Pedro F. Ramírez Alejandro Ruipérez The small black hole illusion Journal of High Energy Physics Black Holes in String Theory Superstrings and Heterotic Strings |
| title | The small black hole illusion |
| title_full | The small black hole illusion |
| title_fullStr | The small black hole illusion |
| title_full_unstemmed | The small black hole illusion |
| title_short | The small black hole illusion |
| title_sort | small black hole illusion |
| topic | Black Holes in String Theory Superstrings and Heterotic Strings |
| url | http://link.springer.com/article/10.1007/JHEP03(2020)115 |
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